What kind of information does this map show?
A. The roads that connect different cities
OB. The shapes of different landforms
O C. The elevation of Earth's surface features
D. The natural resources found in different areas

Answer:

The number of passengers that the Embraer E170 could carry if its fuselage was made of steel  is 39 passengers

Explanation:

The given parameters of the cylinder representing the fuselage are;

The length of the cylinder, l = 30.0 meters

The width of the cylinder, w = 2.5 meters

The thickness of the cylinder, t = 2.5 mm = 0.0025 meters

The volume of the metal required to make the fuselage cylinder, V = (π·w²/4 - π·(w - 2·t)²/4) × l

Therefore, by substituting the known values, we have;

V = (π × 2.5²/4 - π×(2.5 - 2×0.0025)²/4) × 30 = 0.58845957392

The volume of the metal required to make the fuselage cylinder, V≈ 0.58846m³

The given density of steel = 7.87 g/cm³ = 7870 kg/m³

The given density of aluminum = 2.70 g/cm³ = 2,700 kg/m³

Mass = Density × Volume

The mass of the fuselage made with steel = The given density of steel × The volume of the metal required to make the fuselage cylinder

∴ The mass of the fuselage made with steel = 7870 × 0.58846 ≈ 4631.18

The mass of the fuselage made with steel ≈ 4631.18 kg

Similarly, the mass of the fuselage made with aluminum = 2,700 × 0.58846 ≈ 1588.84

The mass of the fuselage made with aluminum ≈ 1588.84 kg

The total mass the Embraer E170 could carry = The mass of the fuselage made with aluminum + The mass of the 78 passengers

The average mass of each passenger = 79 kg

∴ The total mass the Embraer E170 could carry ≈ 1588.84 + 78 × 79 = 7750.84

The total mass the Embraer E170 could carry ≈ 7750.84 kg

The extra mass the Embraer E170 could carry when made of steel = (The total mass the Embraer E170 can carry) - (The mass of the fuselage made with steel)

∴ The extra mass the Embraer E170 could carry when made of steel = 7750.84 - 4631.18 = 3119.36

The extra mass the Embraer E170 could carry when made of steel ≈ 3119.36 kg

The number of passengers the Embraer E170 could carry when made of steel  = (The extra mass the Embraer E170 could carry when made of steel)/(The average mass of one passenger)

∴ The number of passengers the Embraer E170 could carry if its fuselage was made of steel  = 3119.36 kg/(79 kg/passenger) ≈ 39.489 passengers

The number of passengers that the Embraer E170 could carry if its fuselage was made of steel  ≈ 39 passengers (we round down when counting people which are whole quantities)

Answer:

32.06 grams

Explanation:

One mole of sulfur is equal to 32.06 grams of sulfur.

Answer:ok

Explanatio

heres the answer 32.065 grams because 1 mole is equal to 1 moles Sulfur

Answer:

okay

Explanation:

I can help u u can ask question .....

The molality of a solution : m = 0.33 mol/kg

Given

2 moles of NaOH in 6 kg  of water

Required

The molality

Solution

Molality shows how many moles are dissolved in every 1000 grams of solvent.

m = n x (1000/p)

m = Molality

n = number of moles of solute

p = solvent mass (grams)

Input the value :

solute : NaOH

solvent : water

m = 2 moles : 6 kg

m = 0.33 mol/kg

Answer:

19.5g

Explanation:

Given parameters:

Volume of propane gas = 9.95L

Unknown:

Mass of propane gas =  ?

Solution:

To solve this problem, find the number of moles first.

    At STP;

        22.4L of gas makes up 1 mole

         9.95L of gas will have a [tex]\frac{9.95}{22.4}[/tex]    = 0.44mole

So;

   Mass of propane gas  = number of moles x molar mass

Molar mass of propane  = 3(12) + 8(1)  = 44g/mol

    Mass  = 0.44 x 44  = 19.5g

Answer:

??

Explanation:

I can't tell, you don't have the answer choices up I can't see them

what are the in the drop-down boxes?

Answer: How hydroelectric plant is better over thermal power plant in creating less pollution?

Explanation:

The thermal power plant utilizes the coal as a fuel. The heat energy so produce after burning coal is used for generating electrical energy. The burning of the coal results in the production of pollutants. The carbon dioxide is also a chief pollutant of coal burning. This can pollute the air.

The hydroelectric plant is better than thermal power plant in the sense no fuel is required for this purpose the energy from water currents are used for generating electrical energy.  

So, the citizens should research about hydroelectric plant and try to know how it is efficient in providing routine energy supply and impact it exerts on the environment if used as a source of energy generation.

Answer:

The interdependence of agriculture and industry helps the development of both the sectors. The most important aspect of this inter dependence is that the products of one serve as important inputs for the other. Growth of one sector, thus means ample supply of inputs for the other.

Explanation:

Answer:

aluminum nitride

Explanation:

i think

Answer:

Protons and Neutrons have approximately the same mass.

Equal numbers of protons and electrons make an atom neutral.

Protons have a positive charge

Explanation:

Protons and Neutrons have approximately the same mass. - both are 1 amu

Equal numbers of protons and electrons make an atom neutral. - protons are +1 and electrons are -1, so they cancel each other if there are equal amounts.

Protons have a positive charge - this is true.

Answer:

A, 4,3,2

B, 1,1,2

C, 1,1,1,2

Answer:

K=39, N=14, O=16. So molar mass of KNO3= 39+14+3(16)= 101

Im Wrong?

We, know molecular mass of water is, M = 16 g/mol .

Given mass of water, m = 18 g.

We know, number of moles is given by :

[tex]n = \dfrac{18\ g}{16 \ g/mol}\\\\n = 1.125\ moles[/tex]

Now, 1 mole of any compound contains 6.022 × 10²³ molecules.

So, number of moles in 1.125 moles of water is 1.125 × 6.022 × 10²³ =

6.77 × 10²³ molecules.

Hence, this is the required solution.

Answer:

I don't know if this is what you are looking for but maybe making paints out of things you find outside??? sry if this isn't what you were looking for

Answer:

i dont need

Explanation:

do u know ......

Answer:

Resting Point

Explanation:

Answer: amplitude

Explanation:

Answer:

how many grams of NH3 can be prepared from 77.3 grams of N2 and 24.2 grams of H2?

=80.4 g

Explanation:

I think.

Answer:

C

I think not positive good luck tho

A heavily forested area is one that has a dense and large number of trees. The areas like mountainous tracks or the protected frosts areas of wildlife.

Hence the option D is correct, trees need to to be cleared for working efficiently.

Learn more about the  area that needs additional solar collectors to meet energy demand.

brainly.in/question/40583530.

Answer:

Balance

Explanation:

hope i helped

Answer:

1: X and Y

2: A

Explanation:

Answer:

Option 3: They are known as solutions

Explanation:

Examples of homogenous mixtures include:

I hope this helps :)

this is just 60 divided by 15, which is 4

so your answer is 4A :)

Answer:

60 divided by 15? That's 4 if that's what you're asking